【摘要】 通过两年的多点试验表明 ,哈市玉米、水稻、大豆作物的籽实、秸秆、根茬在产量上有一定的比例关系 ,其中平均比例为玉米 1:1.2 4 :0 .2 8,水稻 1:0 .87:0 .38;大豆 1:0 .2 6 :0 .33。养分分配也有差异 ,以玉米为例 ,氮、磷、钾养分在籽实、秸秆、根茬中的含量分别为 1.32 % ,0 .85 % ,0 .71% ;0 .4 0 % ,0 .16 % ,0 .2 4 %和 0 .5 3% ,0 .90 % ,0 .6 0 %。3种养分摄取的总量排序为籽实 >秸杆 >根茬更多还原

【Abstract】 Investigation of many sites in two years shoves that there is a well as in rice and soybean.The awarage ration in corn and rice and Soybean is 1∶1 24∶0 28 and 1∶0 87∶0 38 and 1∶0 26∶0 33 The distribution of nutrient is also different.For example.In corn,the nutrient content of N.P.K in grain and stalks and root is 1 32%,0 85%,0 71%and 0 40%,0 16%,0 24% and 0 53%,0 90%,0 60% respective.The sequence of the total absorption in the three nutrient is grain larger than stalks and stalks larger than root.$$$$更多还原